CN208009452U - A kind of system for conserving and draining for slope greening - Google Patents
A kind of system for conserving and draining for slope greening Download PDFInfo
- Publication number
- CN208009452U CN208009452U CN201820358201.2U CN201820358201U CN208009452U CN 208009452 U CN208009452 U CN 208009452U CN 201820358201 U CN201820358201 U CN 201820358201U CN 208009452 U CN208009452 U CN 208009452U
- Authority
- CN
- China
- Prior art keywords
- slope
- draining
- water drainage
- greening
- conserving
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Retaining Walls (AREA)
Abstract
The utility model is related to building side slope fields, in particular to a kind of system for conserving and draining for slope greening.The system includes：First intercepting ditch, slope greening curing system, slope ground surface water drainage system and slopes ground water drainage system.First intercepting ditch, slope greening curing system, slope ground surface water drainage system and slopes ground water drainage system are interconnected, so as to form good water circulating effect.The system should be able to be applied in general edge slope structure, can effectively improve the utilization rate of surface water.Slope retaining structure be can also apply to using in the structure of retaining wall form, improve the utilization rate of surface water.
Description
Technical field
The utility model is related to building side slope fields, conserve and drain for slope greening in particular to one kind
System.
Background technology
With greatly developing for national basis construction, a large amount of highway, railway engineering are come into being, this is bound to cause largely
Slope project occur, and to be mostly hand excavation form these side slopes, and original vegetation is made to be destroyed, and balance is broken, therefore such as
What keeps the stabilization of side slope and the Afforestation of slope surface is the research emphasis of current slope project.
The Afforestation majority of slope surface is by the way of planting plants at present, and such plant maintenance problem is with regard to following
.At present frequently with two ways, first, spray irrigation system is established with fixed or movement pipeline, the maintenance method using water wisely and effect
Rate is higher, but needs water source supply steady in a long-term, and the cost of device buying, installation and maintenance is higher.Another kind is with spilling
Waterwheel is poured, which has greater advantage when lacking stable source of water, but due to manual work, it is inefficient,
To the bad control of the impact force of water, easy damaged plant seedlings when sprinkling, it is also possible to cause slope surface soil erosion.
It as the saying goes " ten slide nine water ", it is seen that the influence of water Slope Stability is very great.It is set at present frequently with top of the slope
Set intercepting ditch, bottom of slope sets the mode in gutter and handles surface water, but for larger side slope, slope surface setting intercepting ditch is also
Very it is necessary to.Processing for these surface water is all often by gutter to draining, and seldom again by these water
It collects and is applied in the engineering, to solve the problems, such as the maintenance of plant itself.
Utility model content
The system that the purpose of this utility model is to provide a kind of to conserve and drain for slope greening, can improve side
The utilization rate of slope structure surface water.
To achieve the goals above, the technical solution that the utility model embodiment uses is as follows：
A kind of system for conserving and draining for slope greening, including：
First intercepting ditch；First intercepting ditch is arranged at the top of the slope of side slope；
Slope greening curing system；Slope greening curing system is communicated in the first intercepting ditch；
Slope ground surface water drainage system；Slope ground surface water drainage system is arranged in the slope surface of side slope；Slope ground surface water is arranged
Water system is communicated in slope greening curing system；
Slopes ground water drainage system；Slopes ground water drainage system is arranged in the slopes of side slope.
In the utility model preferred embodiment,
The system for conserving and draining for slope greening further includes the second intercepting ditch；
The bottom of slope in side slope is arranged in second intercepting ditch.
In the utility model preferred embodiment,
Slope greening curing system includes drainpipe and drain elbow；
The both ends of drainpipe are respectively arranged with inlet and outlet；
Drain elbow connects the inlet and outlet of adjacent drainpipe.
In the utility model preferred embodiment,
Slope greening curing system further includes U-shaped fixed pipe clamp；
U-shaped fixed pipe clamp is uniformly arranged along drainpipe arranged direction, so that drainpipe to be fixed in slope surface.
In the utility model preferred embodiment,
Drainpipe uses the porous geosynthetics of continuous fiber shape.
In the utility model preferred embodiment,
The water inlet of drainpipe is connected to the first intercepting ditch；
The junction of the water inlet of drainpipe and the first intercepting ditch is provided with valve；
The water outlet of intercepting ditch is provided with slag net.
In the utility model preferred embodiment,
Slope ground surface water drainage system includes draining traverse furrow, draining valley and draining flute；
Draining flute is parallel with slope surface and sets；
Traverse furrow is drained perpendicular to draining flute；
It drains at an acute angle between valley and draining flute；
Draining flute is configurable for the surface water drained in traverse furrow, draining valley draining into the second intercepting ditch.
In the utility model preferred embodiment,
Slopes ground water drainage system includes plastic blind-ditch；
Plastic blind-ditch is parallel to slope surface setting.
In the utility model preferred embodiment,
Plastic blind-ditch uses the porous geosynthetics of continuous fiber shape.
A kind of system for conserving and draining for slope greening, including：
Side slope ontology and retaining wall；
First intercepting ditch；First intercepting ditch is arranged at the top of the slope of side slope；
Slope greening curing system；Slope greening curing system is communicated in the first intercepting ditch；
Slope ground surface water drainage system；Slope ground surface water drainage system is arranged in the slope surface of side slope；Slope ground surface water is arranged
Water system is communicated in slope greening curing system；
Slopes ground water drainage system；Slopes ground water drainage system is arranged in the slopes of side slope；
Retaining wall is internally provided with multiple drain holes.
The utility model has the beneficial effects that：
A kind of system for conserving and draining for slope greening provided by the utility model, including：First intercepting ditch, slope
Face virescence maintenance system, slope ground surface water drainage system and slopes ground water drainage system.Wherein, the first intercepting ditch setting exists
At the top of the slope of side slope；Slope greening curing system is communicated in the first intercepting ditch；Slope ground surface water drainage system is arranged in side slope
In slope surface；Slope ground surface water drainage system is communicated in slope greening curing system；Slopes ground water drainage system is arranged in side slope
Slopes in.This is with being used for the first intercepting ditch, slope greening curing system, slope surface for the system that slope greening is conserved and drained
Table water drainage system and slopes ground water drainage system are interconnected, so as to form good water circulating effect.By
The first intercepting ditch is arranged in the top of the slope of side slope, can save water in first intercepting ditch, and then can be that subsequent slope surface is green
Change maintenance and water source is provided.It, can be by the water in the first intercepting ditch along the slope greening by the way that slope greening curing system is arranged
Curing system is delivered to the slope surface of entire side slope, so as to be poured to the plant in slope surface.By in setting slope surface
Table water drainage system can in time be drained rainwater by slope ground surface water drainage system when the excessive rainfall of slope surface, into
And it ensure that slope plants healthy growth.By the way that slopes ground water drainage system is arranged, will further can penetrate into slopes
The excessive rainwater in portion is drained, and further ensure that the stability of entire edge slope structure.This be used for slope greening maintenance and
The system of draining is applied in general edge slope structure, can effectively improve the utilization rate of surface water.
A kind of system for conserving and draining for slope greening provided by the utility model, including：Side slope ontology, earth-retaining
Wall, the first intercepting ditch, slope greening curing system, slope ground surface water drainage system and slopes ground water drainage system.First
Intercepting ditch, slope greening curing system, slope ground surface water drainage system and slopes ground water drainage system are interconnected, earth-retaining
Wall is internally provided with multiple drain holes.The system for conserving and draining for slope greening is used applied to slope retaining structure
In the structure of retaining wall form, the utilization rate of surface water can be effectively improved.
Description of the drawings
It, below will be to required use in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
The first of the system for conserving and draining for slope greening that Fig. 1 provides for the utility model first embodiment regards
The structural schematic diagram at angle；
The second of the system for conserving and draining for slope greening that Fig. 2 provides for the utility model first embodiment regards
The structural schematic diagram at angle；
The first of the system for conserving and draining for slope greening that Fig. 3 provides for the utility model second embodiment regards
The structural schematic diagram at angle；
The second of the system for conserving and draining for slope greening that Fig. 4 provides for the utility model second embodiment regards
The structural schematic diagram at angle.
Icon：The system that 100- is conserved and drained for slope greening；The first intercepting ditch of 110-；111- valves；112-
Slag net；120- slope greening curing systems；121- drainpipes；122- drain elbows；123-U types fix pipe clamp；130- slope surfaces
Surface water drainage system；131- drains traverse furrow；132- drains valley；133- drains flute；140- slopes ground water drainage systems；
141- plastic blind-ditchs；142- drain holes；The second intercepting ditch of 150-；160- retaining walls；170- water inlet pipes；200- is used for slope greening
The system of maintenance and draining；The first intercepting ditch of 210-；220- slope greening curing systems；230- slope ground surface water draining system
System；240- slopes ground water drainage systems.
Specific implementation mode
It is new below in conjunction with this practicality to keep the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here described in attached drawing and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiments of the present invention to providing in the accompanying drawings is not intended to limit requirement below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained without creative efforts, all
Belong to the range of the utility model protection.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the description of the utility model embodiment, it should be noted that the orientation or position of the instructions such as term "upper", "inner"
Set relationship be based on the orientation or positional relationship shown in the drawings or the utility model product using when the orientation usually put
Or position relationship, be merely for convenience of describing the present invention and simplifying the description, do not indicate or imply the indicated device or
Element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as the limit to the utility model
System.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection,
Or it is integrally connected；It can be directly connected, can also can be indirectly connected through an intermediary the company inside two elements
It is logical.For the ordinary skill in the art, above-mentioned term in the present invention specific can be understood with concrete condition
Meaning.
First embodiment
Fig. 1-Fig. 2 is please referred to, the system 100 that the present embodiment provides a kind of to conserve and drain for slope greening, packet
Include the first intercepting ditch 110, slope greening curing system 120, slope ground surface water drainage system 130, slopes ground water drainage system
140, the second intercepting ditch 150 and retaining wall 160；
Further, the first intercepting ditch 110 is arranged at the top of the slope of side slope；Slope greening curing system 120 is communicated in
One intercepting ditch 110；Slope ground surface water drainage system 130 is arranged in the slope surface of side slope；Slope ground surface water drainage system 130 is connected to
In slope greening curing system 120；Slopes ground water drainage system 140 is arranged in the slopes of side slope；Second intercepting ditch 150 is set
It sets in the bottom of retaining wall 160.
Further, slope greening curing system 120 is communicated in the first intercepting ditch 110；Slope ground surface water drainage system 130
It is communicated in slope greening curing system 120.
By by the first intercepting ditch 110, slope greening curing system 120, slope ground surface water drainage system 130 and slopes
Ground water drainage system 140 and the second intercepting ditch 150 are interconnected, so as to form good water circulating effect.And then it is
Making full use of for surface water at follow-up side slope structure provides advantageous guarantee.
Further, the first intercepting ditch 110 is arranged at the top of side slope, and the first intercepting ditch 110 can be used as cistern, make
For the water source of the maintenance of slope greening below.
Further, slope greening curing system 120 includes drainpipe 121, drain elbow 122 and U-shaped fixed pipe clamp
123.The porous geosynthetics of continuous fiber shape can be used in drainpipe 121, and the both ends of drainpipe 121 are respectively arranged with into water
Mouth and water outlet, drain elbow 122 connect the inlet and outlet of adjacent row water pipe 121.U-shaped fixed pipe clamp 123 is along row
121 arranged direction of water pipe is uniformly arranged, so that drainpipe 121 to be fixed in slope surface.
The water inlet of the drainpipe 121 of top is connect with the valve 111 of the first intercepting ditch 110 in side slope, and valve 111 is not
A simple only switch, further comprises a segment pipe, this pipeline links together with the first intercepting ditch 110, as first section
The water outlet in ditch 110.This water outlet is provided with slag net 112, it is therefore an objective to prevent sundries, sandstone in water etc. from entering row
In water pipe 121, this slag net 112 can be used wire netting and be made, and be fixed on water outlet.Valve 111 is opened, and drainpipe is flowed into
Water in 121 is flowed along duct orientation, and is gone out by the hole seepage flow of pipeline itself, is reached to the mesh of vegetation water seasoning
's.And because hole is small and dense, the water of outflow is simultaneously little, will not cause to damage to plant seedlings, will not more cause slope surface
Soil erosion.
Water outlet close to last root drainpipe 121 at Slope bottom will be embedded in below ground certain depth, extra
Water will penetrate into underground, be discharged it by underdrainage system.
Further, slope ground surface water drainage system 130 includes draining traverse furrow 131, draining valley 132 and draining flute
133.Draining flute 133 is parallel with slope surface and sets, at least 2, and draining traverse furrow 131 is set perpendicular to draining flute 133, and draining is oblique
It is at an acute angle between ditch 132 and draining flute 133.Surface water in draining traverse furrow 131, draining valley 132 will come together in draining flute
In 133, water is drained into the second intercepting ditch 150 by draining flute 133.
Slopes ground water drainage system 140 includes plastic blind-ditch 141 and drain hole 142.Plastic blind-ditch 141 is parallel to slope surface
Setting, in below ground according to the geological condition of soil layer, mainly permeable situation is laid with, at least 2, can adopt at a certain distance
With the porous geosynthetics of continuous fiber shape.Underground water by the hole seepage flow of plastic blind-ditch 141 into french drain, along blind
The direction of ditch is flow at 142 position of drain hole, and the second intercepting ditch 150 is expelled to by drain hole 142.Drain hole 142 is according to one
Set a distance is arranged in inside retaining wall 160, and at least 2, general PVC material can be used and be made.
To achieve the purpose that water recycles, the suitable position at the second intercepting ditch 150 can be incited somebody to action with pumping equipments such as water pumps
Water is delivered to the first intercepting ditch 110 by water inlet pipe 170.To prevent sundries, sandstone in water etc. from entering in water inlet pipe 170,
The pumping equipments such as water pump enter to select setting slag net, slag net that wire netting can be used and be made, be fixed on into water at water
At mouthful.
Second embodiment
Fig. 3 and Fig. 4 are please referred to, the system 200 that the present embodiment provides a kind of to conserve and drain for slope greening, with
The basic structure all same for the system for conserving and draining for slope greening that first embodiment provides, institute's difference exist
In in the present embodiment, being not provided with retaining wall.
Specifically, this is used for slope greening maintenance and the system 200 of draining includes：First intercepting ditch 210, slope greening
Curing system 220, slope ground surface water drainage system 230 and slopes ground water drainage system 240.
First intercepting ditch 210 is arranged at the top of the slope of side slope；Slope greening curing system 220 is communicated in the first intercepting ditch
210；Slope ground surface water drainage system 230 is arranged in the slope surface of side slope, and it is green that slope ground surface water drainage system 230 is communicated in slope surface
Change curing system 220；Slopes ground water drainage system 240 is arranged in the slopes of the side slope.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.It should be noted that
It arrives：Similar label and letter indicate similar terms in following attached drawing, therefore, once determined in a certain Xiang Yi attached drawing
Justice further need not then be defined and explained to it in subsequent attached drawing.
Claims (10)
1. a kind of system for conserving and draining for slope greening, which is characterized in that including：
First intercepting ditch；First intercepting ditch is arranged at the top of the slope of side slope；
Slope greening curing system；The slope greening curing system is communicated in first intercepting ditch；
Slope ground surface water drainage system；The slope ground surface water drainage system is arranged in the slope surface of the side slope；The slope surface
Surface water drainage system is communicated in the slope greening curing system；
Slopes ground water drainage system；The slopes ground water drainage system is arranged in the slopes of the side slope.
2. the system for conserving and draining for slope greening as described in claim 1, which is characterized in that
The system for conserving and draining for slope greening further includes the second intercepting ditch；
The bottom of slope in the side slope is arranged in second intercepting ditch.
3. the system for conserving and draining for slope greening as claimed in claim 2, which is characterized in that
The slope greening curing system includes drainpipe and drain elbow；
The both ends of the drainpipe are respectively arranged with inlet and outlet；
The drain elbow connects the inlet and outlet of the adjacent drainpipe.
4. the system for conserving and draining for slope greening as claimed in claim 3, which is characterized in that
The slope greening curing system further includes U-shaped fixed pipe clamp；
The U-shaped fixed pipe clamp is uniformly arranged along the drainpipe arranged direction, so that the drainpipe is fixed on slope surface
On.
5. the system for conserving and draining for slope greening as claimed in claim 4, which is characterized in that
The drainpipe uses the porous geosynthetics of continuous fiber shape.
6. the system for conserving and draining for slope greening as claimed in claim 3, which is characterized in that
The water inlet of the drainpipe is connected to first intercepting ditch；
The water inlet of the drainpipe and the junction of first intercepting ditch are provided with valve；
The water outlet of first intercepting ditch is provided with slag net.
7. the system for conserving and draining for slope greening as claimed in claim 2, which is characterized in that
The slope ground surface water drainage system includes draining traverse furrow, draining valley and draining flute；
The draining flute is parallel with the slope surface and sets；
The draining traverse furrow is perpendicular to the draining flute；
It is at an acute angle between the draining valley and the draining flute；
The draining flute is configurable for the surface water in the draining traverse furrow, the draining valley draining into described second
Intercepting ditch.
8. the system for conserving and draining for slope greening as claimed in claim 7, which is characterized in that
The slopes ground water drainage system includes plastic blind-ditch；
The plastic blind-ditch is parallel to the slope surface setting.
9. the system for conserving and draining for slope greening as claimed in claim 8, which is characterized in that
The plastic blind-ditch uses the porous geosynthetics of continuous fiber shape.
10. a kind of system for conserving and draining for slope greening, which is characterized in that including：
Side slope ontology and retaining wall；
First intercepting ditch；First intercepting ditch is arranged at the top of the slope of side slope；
Slope greening curing system；The slope greening curing system is communicated in first intercepting ditch；
Slope ground surface water drainage system；The slope ground surface water drainage system is arranged in the slope surface of the side slope；The slope surface
Surface water drainage system is communicated in the slope greening curing system；
Slopes ground water drainage system；The slopes ground water drainage system is arranged in the slopes of the side slope；
The retaining wall is internally provided with multiple drain holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820358201.2U CN208009452U (en) | 2018-03-15 | 2018-03-15 | A kind of system for conserving and draining for slope greening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820358201.2U CN208009452U (en) | 2018-03-15 | 2018-03-15 | A kind of system for conserving and draining for slope greening |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208009452U true CN208009452U (en) | 2018-10-26 |
Family
ID=63888749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820358201.2U Expired - Fee Related CN208009452U (en) | 2018-03-15 | 2018-03-15 | A kind of system for conserving and draining for slope greening |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208009452U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356180A (en) * | 2018-12-19 | 2019-02-19 | 大连地拓环境科技有限公司 | A kind of Mine production slope drainage system and its construction method |
| CN110145007A (en) * | 2019-04-01 | 2019-08-20 | 中铁第四勘察设计院集团有限公司 | The drainage system of Dumping Sites |
| CN110278804A (en) * | 2019-06-25 | 2019-09-27 | 中国一冶集团有限公司 | A kind of high steep hard greening side slope system and its application method |
| CN112535074A (en) * | 2020-11-12 | 2021-03-23 | 华能澜沧江水电股份有限公司托巴水电工程建设管理局 | Grass planting greening method for rocky high slope |
-
2018
- 2018-03-15 CN CN201820358201.2U patent/CN208009452U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356180A (en) * | 2018-12-19 | 2019-02-19 | 大连地拓环境科技有限公司 | A kind of Mine production slope drainage system and its construction method |
| CN110145007A (en) * | 2019-04-01 | 2019-08-20 | 中铁第四勘察设计院集团有限公司 | The drainage system of Dumping Sites |
| CN110278804A (en) * | 2019-06-25 | 2019-09-27 | 中国一冶集团有限公司 | A kind of high steep hard greening side slope system and its application method |
| CN112535074A (en) * | 2020-11-12 | 2021-03-23 | 华能澜沧江水电股份有限公司托巴水电工程建设管理局 | Grass planting greening method for rocky high slope |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208009452U (en) | A kind of system for conserving and draining for slope greening | |
| JP6142370B2 (en) | Multiple filtration automatic drainage irrigation piping and planting equipment | |
| CN204616612U (en) | Hillside fields water-saving spray irrigation system | |
| CN204000904U (en) | A kind of mesh duct for solid slope water storage | |
| CN205348351U (en) | Have quality of water purification performance's rainfall runoff control system concurrently | |
| CN202425400U (en) | Water-saving structure utilizing rainwater on bridge floor of viaduct bridge to irrigate green space under bridge | |
| CN201813703U (en) | Protected agriculture film rainwater-collecting gravitational trickle irrigation | |
| CN110741910A (en) | Water collecting and supplying system and method for mine refuse dump | |
| CN111809475A (en) | Ecological town road in sponge city | |
| CN208844656U (en) | Rainwater-collecting and constant pressure seep vegetation moisturizing net certainly | |
| CN208650210U (en) | A kind of hillside fields grass planting ditch | |
| CN215857492U (en) | Ecological bank protection of good engineering | |
| CN208733577U (en) | A kind of well shaft type pumping plant is anti-blocking to block dirty water inlet | |
| CN201226701Y (en) | Low pressure water-saving irrigation system | |
| CN105165551A (en) | Water storage irrigation and energy saving park | |
| CN211793411U (en) | Water collecting and supplying system for mine refuse dump | |
| CN211447514U (en) | Roof water storage and drainage structure | |
| CN206821528U (en) | A kind of photovoltaic water-saving irrigation system using highway afflux canal | |
| CN109750718A (en) | Farm field irrigation drainage condominium system | |
| CN204616613U (en) | Hillside fields sprinkling irrigation system | |
| CN203924016U (en) | A kind of agricultural drain system | |
| CN208668577U (en) | A kind of sponge urban road drainage structure | |
| CN102242543A (en) | Water conservancy system for preventing and treating soil secondary salinization in greenhouses in coastal region | |
| CN105672455A (en) | Water seepage and drainage ditch component | |
| CN106258557A (en) | There is lawn and the construction method thereof collecting rainwater function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181026 Termination date: 20190315 |